Answer: 1 in 3rd chance
Step-by-step explanation:
The are 6 balls and 4 are green and the other 2 are white so if you but it in fraction form it would be 2 over 6 with simply to 1 over 3
P>7, because...
26p-20>14p+64
-14p -14p (Subtract 14 from both sides)
-----------------------
12p-20>64
+20 +20 (add 20 to both sides)
----------------
12p>84
/12 /12 (divide both sides by 12)
-----------
p>7
Hope this helps!
Square both given expressions and add them together. Make use of trig identities.
(sin(a) +sin(b))^2 = sin(a)^2 +2sin(a)sin(b) +sin(b)^2 = 5/3
(cos(a) +cos(b))^2 = cos(a)^2 +2cos(a)cos(b) +cos(b)^2 = 1
Adding, we have
sin(a)^2 +cos(a^2) +2(cos(a)cos(b) +sin(a)sin(b)) +sin(b)^2 +cos(b)^2 = 2 2/3
Of course, the first and last pairs of terms are 1 and 1, and the middle product is 2cos(a-b), so you have
1 + 2cos(a-b) +1 = 2 2/3
cos(a-b) = 1/3
The answer is 0.025641025641026
